.rk-root{--white:#fff;--cream:#232323;--cream-deep:#2c2c2c;--gold-900:#c9a84c;--gold-700:#c9a84c;--gold-500:#b89040;--gold-400:#a07828;--gold-300:#7a5c20;--gold-100:#1e1600;--gold-border:#ffffff1a;--gold-border-strong:#ffffff2e;--gold-shadow:#00000080;--text-900:#f0f0f0;--text-700:#d0d0d0;--text-500:#999;--text-300:#666;--text-400:gray;--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--ease:cubic-bezier(.25, .46, .45, .94);color:var(--text-700);-webkit-font-smoothing:antialiased;background:#1a1a1a;min-height:100vh;font-family:Noto Sans KR,sans-serif;font-size:16px;line-height:1.75}.rk-root *,.rk-root :before,.rk-root :after{box-sizing:border-box}.rk-root h1,.rk-root h2,.rk-root h3,.rk-root h4{color:var(--text-900);font-family:Playfair Display,Noto Sans KR,serif;line-height:1.2}.rk-root a{color:inherit;text-decoration:none}.rk-root img{max-width:100%;height:auto;display:block}.rk-root .rk-header-logo-img{width:auto;height:32px}.rk-site-header{z-index:100;background:#1a1a1a;border-bottom:1px solid #ffffff14;height:70px;padding:0;position:sticky;top:0}.rk-site-header-inner{align-items:center;max-width:1140px;height:100%;margin:0 auto;padding:0 24px;display:flex}.rk-header-logo{align-items:center;gap:10px;text-decoration:none;display:flex}.rk-header-logo-img{filter:drop-shadow(0 2px 8px #0000008c);width:auto;height:40px;display:block}.rk-header-brand-name{color:#f0f0f0;letter-spacing:-.01em;font-family:Noto Sans KR,sans-serif;font-size:20px;font-weight:700}.rk-page-wrapper{grid-template-columns:1fr 360px;align-items:start;width:100%;max-width:1140px;margin:0 auto;display:grid}.rk-content-left{flex-direction:column;display:flex;overflow-x:clip}.rk-detail-img{width:100%;height:auto;display:block}.rk-detail-img-cta{cursor:pointer;transition:opacity .18s}.rk-detail-img-cta:hover{opacity:.92}.rk-tab-nav{z-index:5;background:#1a1a1a;border-bottom:2px solid #ffffff1a;margin-bottom:0;display:flex;position:sticky;top:70px}.rk-tab-btn{color:var(--text-300);cursor:pointer;background:0 0;border:none;border-bottom:3px solid #0000;flex:1;margin-bottom:-2px;padding:16px 0;font-family:Noto Sans KR,sans-serif;font-size:15px;font-weight:600;transition:color .18s,border-color .18s}.rk-tab-btn:hover{color:var(--text-700)}.rk-tab-btn.rk-tab-active{color:var(--text-900);border-bottom-color:var(--text-900)}.rk-instructor-sec{background:#232323;padding:40px 40px 48px}.rk-instructor-details{border:none}.rk-instructor-details>summary{list-style:none}.rk-instructor-details>summary::-webkit-details-marker{display:none}.rk-instructor-toggle-btn{cursor:pointer;-webkit-user-select:none;user-select:none;background:0 0;border:none;justify-content:space-between;align-items:center;gap:16px;width:100%;padding:20px 0;list-style:none;display:flex}.rk-instructor-summary-left{align-items:center;gap:16px;display:flex}.rk-instructor-avatar{border:2px solid #20262e;border-radius:50%;flex-shrink:0;width:72px;height:72px;overflow:hidden}.rk-instructor-photo-img{object-fit:cover;width:100%;height:100%;display:block}.rk-instructor-master-label{color:var(--text-900);font-family:Noto Sans KR,sans-serif;font-size:18px;font-weight:700}.rk-instructor-summary-right{color:var(--text-500);flex-shrink:0;align-items:center;gap:5px;font-family:Noto Sans KR,sans-serif;font-size:13px;font-weight:600;transition:color .18s;display:flex}.rk-instructor-toggle-btn:hover .rk-instructor-summary-right{color:var(--text-900)}.rk-toggle-arrow{transition:transform .22s var(--ease);flex-shrink:0}.rk-toggle-arrow.rk-open{transform:rotate(180deg)}.rk-instructor-detail-body{padding:0 0 24px}.rk-instructor-creds-list{flex-direction:column;gap:12px;padding-top:20px;list-style:none;display:flex}.rk-cred-row{color:var(--text-700);font-size:14px;line-height:1.6}.rk-site-footer{color:var(--text-300);background:#111;padding:40px 40px 56px;font-size:12px;line-height:1.9}.rk-site-footer p{margin-bottom:2px}.rk-footer-copy{color:var(--text-400);margin-top:16px}.rk-footer-privacy-btn{color:var(--text-400);cursor:pointer;background:0 0;border:none;margin-top:8px;padding:0;font-family:Noto Sans KR,sans-serif;font-size:12px;text-decoration:underline}.rk-footer-privacy-btn:hover{color:var(--text-700)}.rk-footer-design{color:var(--text-300);margin-top:12px}.rk-panel-right{width:360px}.rk-panel-scroll{z-index:10;flex-direction:column;height:calc(100vh - 70px);padding:28px 26px 20px;display:flex;position:fixed;top:70px;overflow:hidden}.rk-panel-tag{color:var(--text-500);letter-spacing:.08em;margin-bottom:12px;font-size:12px;font-weight:700}.rk-panel-main-title{color:var(--text-900);word-break:keep-all;margin-bottom:16px;font-family:Noto Sans KR,sans-serif;font-size:20px;font-weight:900;line-height:1.35}.rk-panel-meta-row{color:#39ff14;background:#39ff1414;border:1px solid #39ff144d;border-radius:8px;align-items:center;gap:7px;margin-bottom:20px;padding:8px 12px;font-size:14px;font-weight:700;display:flex}.rk-panel-meta-row svg{color:#39ff14;flex-shrink:0}.rk-panel-viewers{color:var(--text-500);justify-content:center;align-items:center;gap:7px;margin-top:12px;margin-bottom:10px;font-size:12px;display:flex}.rk-panel-viewers strong{color:var(--text-900);font-weight:700}.rk-panel-viewers-dot{background:#22c55e;border-radius:50%;flex-shrink:0;width:7px;height:7px;animation:2.8s ease-in-out infinite rk-dot-glow;display:inline-block;position:relative}.rk-panel-viewers-dot:after{content:"";opacity:0;background:#22c55e;border-radius:50%;animation:2.8s ease-in-out infinite rk-dot-ripple;position:absolute;inset:-3px}@keyframes rk-dot-glow{0%,to{opacity:.55;box-shadow:0 0 #22c55e}50%{opacity:1;box-shadow:0 0 6px #22c55e99}}@keyframes rk-dot-ripple{0%{opacity:.35;transform:scale(1)}70%{opacity:0;transform:scale(2.6)}to{opacity:0;transform:scale(2.6)}}.rk-btn-black{color:#111;border-radius:var(--radius-md);cursor:pointer;width:100%;transition:all .22s var(--ease);letter-spacing:.01em;background:#fff;border:none;justify-content:center;align-items:center;gap:10px;padding:17px 24px;font-family:Noto Sans KR,sans-serif;font-size:16px;font-weight:700;text-decoration:none;display:flex;box-shadow:0 4px 20px #00000073}.rk-btn-black:hover{background:#e8e8e8;transform:translateY(-2px);box-shadow:0 8px 32px #0000008c}.rk-btn-black:active{transform:translateY(0)}.rk-btn-black:disabled{opacity:.6;cursor:not-allowed;transform:none}.rk-panel-cta-btn{border-radius:var(--radius-sm);margin-bottom:12px;padding:12px;font-size:16px}.rk-mobile-bar{z-index:200;padding:12px 16px calc(12px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#1a1a1af7;border-top:1px solid #ffffff1a;align-items:center;gap:16px;display:none;position:fixed;bottom:0;left:0;right:0}.rk-mobile-bar-label{color:var(--text-500);white-space:nowrap;flex-shrink:0;font-size:12px}.rk-mobile-kakao-btn{border-radius:var(--radius-sm);flex:1;padding:14px 16px;font-size:15px}.rk-modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .22s var(--ease);background:#000000b8;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.rk-modal-overlay.rk-is-open{opacity:1;pointer-events:auto}.rk-modal-card{width:100%;max-width:420px;max-height:90vh;transition:transform .28s var(--ease);background:#1e1e1e;border:1px solid #ffffff1a;border-radius:20px;padding:36px 32px 32px;position:relative;overflow-y:auto;transform:translateY(16px)}.rk-modal-overlay.rk-is-open .rk-modal-card{transform:translateY(0)}.rk-modal-close{cursor:pointer;width:34px;height:34px;color:var(--text-500);background:#ffffff0f;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;transition:background .18s,color .18s;display:flex;position:absolute;top:16px;right:16px}.rk-modal-close:hover{color:var(--text-900);background:#ffffff1f}.rk-modal-header{margin-bottom:24px}.rk-modal-badge{color:var(--text-500);letter-spacing:.08em;background:#ffffff0f;border:1px solid #ffffff1a;border-radius:50px;margin-bottom:14px;padding:4px 12px;font-size:11px;font-weight:700;display:inline-block}.rk-modal-title{color:var(--text-900);margin-bottom:10px;font-family:Noto Sans KR,sans-serif;font-size:24px;font-weight:900}.rk-modal-desc{color:var(--text-500);font-size:14px;line-height:1.7}.rk-modal-form{flex-direction:column;gap:16px;display:flex}.rk-form-group{flex-direction:column;gap:8px;display:flex}.rk-form-group label{color:var(--text-700);font-size:13px;font-weight:600}.rk-form-group .rk-required{color:#ef4444;margin-left:2px}.rk-form-group input{border-radius:var(--radius-md);width:100%;color:var(--text-900);background:#2a2a2a;border:1.5px solid #ffffff14;outline:none;padding:13px 16px;font-family:Noto Sans KR,sans-serif;font-size:15px;transition:border-color .18s}.rk-form-group input::placeholder{color:var(--text-300)}.rk-form-group input:focus{background:#2e2e2e;border-color:#ffffff40}.rk-privacy-agree-wrap{border-radius:var(--radius-md);background:#252525;border:1px solid #ffffff12;padding:14px 16px}.rk-privacy-check-label{cursor:pointer;flex-wrap:wrap;align-items:center;gap:10px;display:flex}.rk-privacy-checkbox{display:none}.rk-privacy-check-custom{background:#2a2a2a;border:1.5px solid #fff3;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:18px;height:18px;transition:background .18s,border-color .18s;display:flex}.rk-privacy-checkbox:checked+.rk-privacy-check-custom{background:#fff;border-color:#fff}.rk-privacy-checkbox:checked+.rk-privacy-check-custom:after{content:"";border-bottom:2px solid #111;border-left:2px solid #111;width:10px;height:6px;display:block;transform:rotate(-45deg)translateY(-1px)}.rk-privacy-check-txt{color:var(--text-700);flex:1;font-size:13px}.rk-privacy-toggle-btn{color:var(--text-400);cursor:pointer;background:0 0;border:none;padding:0;font-family:Noto Sans KR,sans-serif;font-size:11px;text-decoration:underline}.rk-privacy-detail{color:var(--text-500);margin-top:12px;font-size:12px}.rk-privacy-table{border-collapse:collapse;width:100%;margin-bottom:10px;font-size:12px}.rk-privacy-table th,.rk-privacy-table td{text-align:center;color:var(--text-500);border:1px solid #ffffff14;padding:8px 10px}.rk-privacy-table th{color:var(--text-700);background:#2a2a2a;font-weight:600}.rk-privacy-notice{color:var(--text-300);font-size:11px;line-height:1.7}.rk-form-error{color:#ef4444;min-height:20px;font-size:13px}.rk-modal-submit-btn{color:#111;background:#39ff14;padding:15px 24px;font-size:16px}.rk-modal-submit-btn:hover{background:#2fd10f}.rk-success-inner{text-align:center;flex-direction:column;align-items:center;padding:20px 0;display:flex}.rk-success-emoji{margin-bottom:16px;font-size:48px}.rk-success-title{color:var(--text-900);margin-bottom:16px;font-family:Noto Sans KR,sans-serif;font-size:22px;font-weight:900}.rk-success-body{color:var(--text-700);margin-bottom:24px;font-size:15px;line-height:1.8}.rk-privacy-modal-card{max-width:520px;max-height:80vh;overflow-y:auto}.rk-privacy-modal-body{flex-direction:column;gap:20px;margin-top:20px;margin-bottom:24px;display:flex}.rk-privacy-section-desc{color:var(--text-500);font-size:13px;line-height:1.8}.rk-privacy-section-title{color:var(--text-700);margin-bottom:8px;font-family:Noto Sans KR,sans-serif;font-size:14px;font-weight:700}.rk-privacy-section p,.rk-privacy-section ul{color:var(--text-500);font-size:13px;line-height:1.8}.rk-privacy-list{padding-left:16px}.rk-privacy-list li{margin-bottom:4px}.rk-privacy-effective-date{color:var(--text-300);font-size:12px}.rk-privacy-confirm-btn{padding:13px 24px;font-size:15px}@media (max-width:1100px){.rk-page-wrapper{grid-template-columns:1fr 300px}.rk-panel-right{width:300px}.rk-panel-scroll{padding:24px 20px 16px}}@media (max-width:768px){.rk-page-wrapper{grid-template-columns:1fr}.rk-content-left{border-right:none;padding-bottom:90px}.rk-panel-right{display:none}.rk-mobile-bar{display:flex}.rk-instructor-sec{padding:24px 20px 32px}}@media (max-width:480px){.rk-instructor-master-label{font-size:16px}}